I guess my question is, how careful do you have to be when cleaning the inside of a lens? My old 300mm f4 Takumar could really use some dust-removal, as could a couple of my other M42 lenses.
John Celio
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On 19/1/05, J. C. O'Connell, discombobulated, unleashed:
I have a M series lens that I need to remove the rear mount to do a little CLA work on but the five screws (phillips) on the rear are super tight ( broke a couple of my screwdrivers trying to remove them). They arent stripped. Any suggestions?
Yes, put the screwdriver into the screwhead, and give a few firm taps on the end of the screwdriver with a blunt instrument (say, an old ME-Super) - the try turning it. Repeat until it gives. Note that the most important thing with screws - especially cross-head screws (Phillips etc) is to apply downward pressure while trying to get them to release - and that the driver be of exactly the right fit :-)
Cheers, Cotty
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